The half-life of a nuclear species ` ''^NX` is 3.2 days calculate its:decay constant

The half-life of a nuclear species ''^NX is 3.2 days calculate its:Average life

If the half life of radium is 1620 years then its decay constant is

Half life of .^24Na is a900 minutes.What is its decay constant?

Half-life period of a firsr oder reaction is 56.5 min. Calculate rate constant in per second.

The half life of a first order reaction is 0.5 min. Calculate time needed for the reactant to reduce to 20% and the amount decomposed in 55s.

pH of a weak monobasic acid is 3.2 in its 0.02 M solution. Calculate its dissociation constant.

pH of a weak monobasic acid is 3.2 in its 0.02 M solution. Calculate its dissociation constant.

The half life period of a radioactive element is 140 days. After 560 days, one gram of the element will reduced to :

From the relation R=R_0A^(1/3) , where R_0 is a constant and A is the mass number of a nucleus , show that the nuclear matter density is nearly constant.(i.e., independent of A)